Burner



s. H, HOPEWELL BURNER Filed July 14,1922 9 2 Sheets- Sheet l 5472222 5 /7 fla oeu eZl INVENTOR WITNESS: ATTORNEY S. H. HOPEWELL BURNER Aug. 28, 1923. 1,466,588

Filed July 14. 1922 2 Sheets-Sheet 2 Jame; /7 flgowzz WITNES: ATIORNEY Patented Aug. 2 8, 1923.

UNITED] STATES SAMIEL H. HOTPEWELL, OF ENSLEY, ALABAMA.

BURNER.

Application filed July 14,

To all whom it may concern:

Be it known that I, SAMIEL H. HornwELL, a citizen of the United State, residing at Ensley, in the county of Jefferson and State of Alabama, have invented new and useful Improvements in Burners, of which the following is a specification.

This invention relates to a combined gas preheater and air injector for rivet heating and the like, the general object of the in vention being to provide an air injector which is so arranged in a conical member that the passage of air through the injector will pull more air through the member and when the device is attached to a gas supply the injector will cause the gas to flow into the device so it will mix with the air.

Another object of the invention is to so form the parts that the air injector can be used alone and when used with the gas supply a regulator is used for controlling the amount of air entering the device around the injector.

The invention also consists .in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustracted in the accompanying drawings and specifically pointed out in the appended claim. 7 In describing my invention in detail, reference will be had to, the accompanying drawings wherein like characters denote like or corresponding parts throughout the sev eral views, and in which- Figure 1 is a side view of the invention. Figure 2 is a longitudinal sectional view. Figure 3 is a view of the injector alone. Figure 4.- is a section on line &4 of Figure 1.

Figure 5 ure 1.

Figure 6 is a section on line 6+6 of F igure 1.

Figure 7 is a front view of the burner. In these views, 1 indicates the preheater which has its rear portion of gradually increasing diameter towards its inlet end and the front end of which is restricted as shown at 2. A gas intake member 3 has a flange 4: thereon which is bolted to the flange of the member 1 and the outer end of this member 3 is adapted to be connected with a. gas supply. The injector member 5 has its flange bolted to the flange 41, this member 5 is a section on line 5-5 of Fig- .being located in the member 1 with its sup- 1922. Serial 1%. 575,079.

ply pipe 6 passing through the member 8. Openings 7 are formed in the flange 4 for admitting air to the member 1 and the amount of this air passing through the openings can be regulated by'the ring plate 8 which has openings 9 therein and slots 10 which receive bolts 11 which engage the flange 4L.

The preheatcr member 1 has inwardly extending ribs 12 therein which act to support the cylindrical end of the injector member 5 and this member 5 has ribs 13 therein which support a hub 1 1 and a nozzle 15 is supported by said hub by being clamped therein by the set screws 16. The 5 supply pipe 6 is connected with the nozzle.

\Vhen the device is used as a preheater, compressed air is introduced into thesupply pipe 6 and escapes through the nozzle.

This sets up a suction in the gas member 3 so that gas will flow into said member and into the injector member and will mix with i the air escaping from the nozzle. Air Will also be drawn in through the openings 7 and this air will mix with the mixture of gas and air passing from the injector memher. This latter supply of air can be regulated as before described. i

This device can be used to great advan tage in automobile shops and the like and inheating steel and iron for working them."

The injector member with the nozzle can be used alone, as shown in Figure 8. This air injector can be used on forges for heating rivets and the like, compressed air passing through the nozzle will cause more air to enter the injector, thereby using a large quantity of outside air, thus the device can be used without much compressed air.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understoood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that suchchanges fall within the scope of the appended claim.

Having thus described my invention what I claim is y A device of the class described comprising an outer member having its rear part of gradually increasing diameter towards its inlet end and its front end restricted, ribs in said member. an inner member removably mounted in the first member and engaging the ribs, said inner member having its front part of cylindrical shape and its rear part of frusto conical shape, ribs on the inner member, a nozzle detachably connected with the ribs and having its discharge end pro- 5 jecting into the cylindrical part of the inner member, means for connecting the nozzle with a supply of compressed air, a gas intake member detachably connected with the outer end of the inner member and adjustable means for admitting air to the space be tween the outer and inner members.

In testimony whereof I aflix my signature.

SAMIEL H. HOPEWELL. 

